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4s - s + 1 = 19
We simplify the equation to the form, which is simple to understand
4s-s+1=19
We move all terms containing s to the left and all other terms to the right.
+4s-1s=+19-1
We simplify left and right side of the equation.
+3s=+18
We divide both sides of the equation by 3 to get s.
s=6
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